The European Parliamentary Research Service prepared a report which claims that Moscow will strive to discredit the results of Ukrainian elections “by organising riots and disseminating disinformation”. The main purpose of such statements is the desire of Brussels to transfer to Moscow the responsibility for the situation in Ukraine after the elections.
The report of the European Parliament Think Tank on "Ukraine's presidential election 2019" is an overview of the situation in Ukraine before the elections.
The report does not mention anything about shifting the responsibility for the situation in Ukraine to Moscow. Ukraine is an independent state, responsible for its own situation.
Russia's readiness to conduct disinformation attacks before and during elections in Ukraine has been confirmed by many OSINT organisations and experts. See here for different disinformation narratives on Ukraine and Ukrainian elections.